Ethyl (triphenylphosphoranylidene)acetate

Also known as: Ethyl 2-(triphenylphosphoranylidene)acetate, (Carboethoxymethylene)triphenylphosphorane, (Carbethoxymethylene)triphenylphosphorane, (Ethoxycarbonylmethylene)triphenylphosphorane, Triphenylcarbethoxymethylenephosphorane, Ethyl (triphenyl-λ<sup>5</sup>-phosphanylidene)acetate, Acetic acid, 2-(triphenylphosphoranylidene)-, ethyl ester, (Triphenylphosphoranylidene)acetic Acid Ethyl Ester

Ethyl (triphenylphosphoranylidene)acetate (CAS 1099-45-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H21O2P and a molecular weight of 348.375 g/mol. Key properties include a melting point of 128-131 °C, a boiling point of 490.4±28.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 263.5±44.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1099-45-2
Jingsj CID: J-25488-6
Molecular Formula: C₂₂H₂₁O₂P
Molecular Weight: 348.375 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	128-131 °C
Boiling Point	490.4±28.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	263.5±44.3 °C
Exact Mass	348.127930
PSA	36.11000
LogP	4.21
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.601
Additional Property	Insoluble

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl (triphenylphosphoranylidene)acetate?

The CAS number of Ethyl (triphenylphosphoranylidene)acetate is 1099-45-2.

What are the molecular formula and molecular weight of Ethyl (triphenylphosphoranylidene)acetate?

Ethyl (triphenylphosphoranylidene)acetate has molecular formula C22H21O2P and molecular weight 348.375 g/mol.

What are the upstream and downstream products of Ethyl (triphenylphosphoranylidene)acetate?

For Ethyl (triphenylphosphoranylidene)acetate, Upstream Products: Ethyl bromoacetate, Triphenylphosphine, (Ethoxycarbonylmethyl)triphenylphosphonium bromide; Downstream Products: Ethyl 3-nitrocinnamate, (E,E)-2,4-Heptadien-1-ol, Ethyl ferulate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl (triphenylphosphoranylidene)acetate (CAS 1099-45-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25488-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.